diff --git a/Battery-Possibilities.md b/Battery-Possibilities.md
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--- /dev/null
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+Solar Powering:
+
+24/7 Battery:
+Deep sleep and every mikroAmpere counts.
+https://randomnerdtutorials.com/esp8266-deep-sleep-with-arduino-ide/#:~:text=To%20put%20the%20ESP8266%20in%20deep%20sleep%2C%20you%20use%20ESP,connect%20RST%20to%20GPIO%2016.
+"To put the ESP8266 in deep sleep mode, use **ESP.deepSleep(uS)** and pass as argument sleep time in microseconds. GPIO 16 must be connected to reset (RST) pin so the ESP8266 is able to wake up."
+
+
+Omit a charging circuit or replaceable batteries (rechargeable)
+
+LiFePo4 Battery (max < 3,6 Volt)
+
+trigBoard has an extremely low power consuption.
+
+If we use normal AA or AAA BAtteries we may need a regulator to lessen the voltage.
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diff --git a/Battery-for-ESP8266.md b/Battery-for-ESP8266.md
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--- a/Battery-for-ESP8266.md
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-Solar Powering:
-
-24/7 Battery:
-Deep sleep and focus every mikroAmpere counts.
-Omit a charging circuit or replaceable batteries (rechargeable)
-
-LiFePo4 Battery (max < 3,6 Volt)
-
-trigBoard has an extremely low power consuption
\ No newline at end of file